Vibratory massage machine



Dec. 15, 1931. I STOYE 1,836,733

VIBRATORY MAS SAGE MACHINE Filed Ma 23, 1928 ATTORNEY Patented Dec. 15,1931 PATENT OFFICE KURT STOYE, OF NEW' YORK, N. Y.

VIBRATORY MASSAGE MACHINE,

Application filed May 23, 1928. Serial No. 278,937,.

to different portions of the human body, for

the purpose of massaging the same.

More particularly stated, my invention ref lates to a type of motorvibrator in which the motor or its equivalent causes a pair of arms toswing rapidly back and forth, these arms being connected with mechanicalparts driven thereby and extending into engagement with some part of thehuman body to be massaged.

The purpose of my improvement is to siniplify the mechanical parts,.cheapen the cost of their manufacture, and bring them into form wherethey may be readily standardized and adapted for quantity production;and at the same time render the parts reliable and positive in action.

Reference is made to the accompanying drawings forming a part of thisspecification, and in which like reference characters indicate likeparts throughout the several figures.

Figure 1 is a snbstantially horizontal section showing one form of myimproved motor vibrator.

Figure 2 is a section on the line 22 of Figure 1, looking in thedirection indicatedby the arrows.

Figure 3 is a section showing a different form of my invention, and isotherwise a section similar to Figure 2.

An electric motor 4, of the usual or any desired censtruction, isprovided with bearings one of which is shown at 5, and supported inthese bearings is the motor shaft 6.

Secured to the motor and enclosing a portion of the shaft 6 is a shell7, made of suitable material, preferably sheet metal.

The shell 7 is provided with two depending portions 8, 8, so fashionedas to form a step, this step being provided with a slot 9 indicated moreparticularly in Figure 2.

Fitted upon the step is a guide plate 10 made of suitable material suchas wood, fibre or metal, and provided with a guide slot 11, extendingparallel with the shaft 6.

Fitted tightly upon the shaft 6 and revoluble therewith is a journalneck 12, provided with a cylindrical bore 13 extending entirely throughit. However, the axis of the cylin drical bore does not coincide withthe axis of the cylindrical neck, but is askew relatively thereto as maybe understood from Fig ure 1.

The cylindrical neck 12 is provided at one of its ends with an annularflange 14.

Neatly but loosely encircling the journal neck 12 is a bearing 15, inthe form of a ring. Integral with this hearing and extending; inopposite directions therefrom are a pair of arms 16, 17.

The journal neck 12 carries a flange ring 18, at the end thereofopposite the annular flange 14.

The journal neck 12 also carries a ball? bearing 19, interposed betweenthe flange ring 18 and the adjacent portion of the ring 15.

Carried by the ring 15 and extending r-adially therefrom is a guide pin20, shown more particularly in Figure 2. This guide pin extends throughthe guide slot'll, and also through the slot 9.

In order to prevent arms 17 from turning with the ournal neck 12 orbeing otherwise displaced, I extend the arms radially outa ward throughthe pair of slots 21, 22, with which I provide the shell 7. By virtue ofthese slots the arms 16, 17 are free to swing, within reasonable limits,in a plane which is normal to the axis of the shaft 6.

The arm 16 is provided with a number of holes 23, and the arm 17 issimilarly provided with a number of holes 24. In this particularinstancethere are seven holes 23 and seven holes 2%, but the number of theseholes may be varied.

A strap 27, made preferably of canvas 01" the like and which may have awidth of two, three or four inches, is provided at its ends with a pairof hooks 29, 30 or equivalent fastenings, whereby its ends aredetachably The operation of the form of my device shown in Figures 1 and2 ma be readily understood. from the foregoing escription.

The motor being in action, the shaft 16 rotates, and the journal neck 12is turned. However, the journal neck being askew relatively to the motorshaft, the annular hearing 15 is subjected to a wabbling motion, thearms 16 and 17 being thus caused to swing back and forth in a fixedplane.

The straps 27 and 28 can be brought nearer to the motor shaft asoccasion may require, by disengaging the hooks 29 and shifting them todifferent holes 23 and 24. In this way the degree of vibratory movementconferred upon the ends of the straps may be varied within reasonablelimits.

While the motor is in action as just described, the guide pin 20 has aswinging movement parallel with the length of the slot 11. One advantageof this guide pin 20 is that it saves wear upon the arms 16 and 17,which are of more expensive construction than the guide pin 20; and whenthis pin is worn out, damaged or misshapen it can be replaced by a newguide pin. This is also true of the guide plate 10.

In some instances I discard the guide pin 20 and parts immediatelyassociated therewith. For this purpose I may employ the constructionillustrated in Figure 3.

The shell 31 is provided with a pair of slots 32, 33 disposed oppositelyto each other, and is further provided with flanges 3a, 35, arranged inpairs asshown, these flanges serving as bearings, and as such receivingthe wear due to movements of the arms 16, 17, which extend out throughthe slots 32 and 33.

Except as just stated, the structure and ac tion of the mechanism shownin Figure 2 is the same as that appearing in the other ligures.

It will be noted that the journal neck 12 may be made from an ordinarycyindrical journal neck, by simply providing it with a cylindrical bore13, the direction of which is askew relatively to the axis of thejournal neck. Such being the case, the journal neck 12 can be cheaplymanufactured in large quantities, and is essentially a part having arelatively simple construction. The journal neck 12 may be readily madeand sold as an article of manufacture.

While in this instance the source of power is an electric motor, I mayuse any other sort of motor suitable for the purpose.

I do not limit myself to the precise mechanism shown, as variations maybe made therein without departing from my invention, the scope of whichis commensurate with my claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is as follows:

1.. A vibratory massage machine, comprising a motor provided with arevoluble shaft,

a shell mounted upon said motor and partially enclosing said shaft, saidshell being provided with slots, a journal neck carried by saidrevoluble shaft and disposed adjacent said shell, a bearing engagingsaid journal neck and disposed adjacent said shell, a pair of armsconnected with said bearing and extending therefrom through said slots,and a pair of massage straps connected with said arms and actuated bymovements thereof.

2. A vibratory massage machine, comprising a motor provided with arevoluble shaft, a journal neck having substantially the form of acylinder and provided with a cylindrical bore disposed askew relativelyto the axis of said journal neck, said revoluble shaft fitting into saidbore of said journal neck in order to enable said journal neck to turnwith said shaft, a bearing fitted upon said journal neck and looserelatively thereto in order to receive a wabbling movement as saidournal rotates with said shaft, means for preventing said bearing fromturning with said shaft, a pair of arms carried by said bearing andextending therefrom in substantially opposite directions, anda pair ofmassage straps connected with said arms and extending therefrom indirections substantially lateral to the length thereof, in order toenable said straps to be pulled alternately in response to the wabblingmovement of said bearing.

3. A Vibratory massage machine, comprising a motor provided with arevoluble shaft, a shell mounted rigidly upon said motor and partiallyenclosing said shaft, said shell be ing provided with slots, a journalneck carried by said shaft and located within said shell, a bearingengaging said journal neck and located within said shell, said bearingand said journal neck being of suitable form to enable the rotation ofsaid shaft to cause a wabbling movement of said bearing, a pair of armsconnected with said bearings and extending therefrom radially outwardthrough said slot, and a pair of massage straps detachably connectedwith said arms and extending laterally therefrom.

Signed at New York, in the county of New York and State of New York,this 17th day of hIay, 1928.

KURT STOYE.

